I have written before about the fascinating sound effects produced by Foley artists for films. They use mostly everyday items to create sounds for films and then have to carefully sync those sounds with the final film. They do that by matching the image to the sound film clip while watching the film. In this clip, Matt Davies eats tomatoes and peppers and other assorted food items, plus does other things to them to create the gross-out sounds of horror films, such as zombies eating brains and flesh and so on.
What interested me is that even though we don’t know what these sounds would be like, since zombies don’t actually exist, people have preconceptions of what they should hear.